147 lines
5.4 KiB
Java
147 lines
5.4 KiB
Java
/*
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* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.io.PrintStream;
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import java.nio.file.Path;
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import java.util.EnumSet;
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import java.util.List;
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import java.util.Set;
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import javax.lang.model.element.ModuleElement;
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import javax.lang.model.element.ModuleElement.Directive;
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import javax.lang.model.element.ModuleElement.DirectiveKind;
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import javax.lang.model.element.ModuleElement.DirectiveVisitor;
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import javax.lang.model.element.ModuleElement.ExportsDirective;
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import javax.lang.model.element.ModuleElement.OpensDirective;
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import javax.lang.model.element.ModuleElement.ProvidesDirective;
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import javax.lang.model.element.ModuleElement.RequiresDirective;
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import javax.lang.model.element.ModuleElement.UsesDirective;
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import javax.tools.JavaCompiler;
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import javax.tools.JavaFileObject;
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import javax.tools.StandardJavaFileManager;
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import javax.tools.ToolProvider;
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import com.sun.source.util.JavacTask;
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/*
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* @test
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* @bug 8175118
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* @summary Add ModuleElement.DirectiveVisitor
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* @library /tools/lib
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* @modules jdk.compiler/com.sun.tools.javac.api
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* jdk.compiler/com.sun.tools.javac.main
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* jdk.compiler/com.sun.tools.javac.util
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* @build toolbox.ToolBox ModuleTestBase
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* @run main DirectiveVisitorTest
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*/
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public class DirectiveVisitorTest extends ModuleTestBase {
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public static void main(String... args) throws Exception {
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new DirectiveVisitorTest().runTests();
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}
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@Test
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public void testVisitor(Path base) throws Exception {
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Path src = base.resolve("src");
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Path src_m1 = src.resolve("m1x");
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tb.writeJavaFiles(src_m1,
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"module m1x { "
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+ " requires m2x;"
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+ " exports p1;"
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+ " opens p2;"
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+ " uses p1.Service;"
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+ " provides p1.Service with p2.Impl;"
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+ "}",
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"package p1; public interface Service { }",
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"package p2; public class Impl implements p1.Service { }");
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Path src_m2 = src.resolve("m2x");
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tb.writeJavaFiles(src_m2,
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"module m2x { }");
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Path modules = base.resolve("modules");
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tb.createDirectories(modules);
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JavaCompiler javac = ToolProvider.getSystemJavaCompiler();
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try (StandardJavaFileManager fm = javac.getStandardFileManager(null, null, null)) {
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Iterable<? extends JavaFileObject> files = fm.getJavaFileObjects(findJavaFiles(src));
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List<String> options = List.of(
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"--module-source-path", src.toString(),
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"-d", modules.toString()
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);
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JavacTask t = (JavacTask) javac.getTask(null, fm, null, options, null, files);
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t.analyze();
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ModuleElement e = t.getElements().getModuleElement("m1x");
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Set<DirectiveKind> kinds = EnumSet.<DirectiveKind>allOf(DirectiveKind.class);
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Visitor v = new Visitor();
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v.visit(e, kinds);
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if (!kinds.equals(EnumSet.<DirectiveKind>noneOf(DirectiveKind.class))) {
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error("Some kinds not found: " + kinds);
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}
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}
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}
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static class Visitor implements DirectiveVisitor<Void,Set<DirectiveKind>> {
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private final PrintStream out = System.err;
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public void visit(ModuleElement e, Set<DirectiveKind> kinds) {
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e.getDirectives().stream().forEach(d -> visit(d, kinds));
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}
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@Override
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public Void visitRequires(RequiresDirective d, Set<DirectiveKind> kinds) {
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visitAny(d, kinds);
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return null;
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}
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@Override
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public Void visitExports(ExportsDirective d, Set<DirectiveKind> kinds) {
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visitAny(d, kinds);
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return null;
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}
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@Override
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public Void visitOpens(OpensDirective d, Set<DirectiveKind> kinds) {
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visitAny(d, kinds);
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return null;
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}
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@Override
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public Void visitUses(UsesDirective d, Set<DirectiveKind> kinds) {
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visitAny(d, kinds);
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return null;
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}
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@Override
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public Void visitProvides(ProvidesDirective d, Set<DirectiveKind> kinds) {
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visitAny(d, kinds);
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return null;
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}
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private void visitAny(Directive d, Set<DirectiveKind> kinds) {
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out.println("visit: " + d);
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kinds.remove(d.getKind());
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}
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}
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}
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